Primary air gauge - replacement/repair
My 2007 Coachman RV had an air leak sound coming from behind the dash. I took the gauge out and found a hairline crack on the plastic body where the air line attaches. It is a Freightliner 12v 2" ...
Forum Discussion
the connection to those gauges is a pressure connection(not sure what it is called) you may be able to squeeze and release the tubing, snip and reconnect. it worked for me. sorry i don't know the name of the connector but it is the same kind used on fish tanks for the air lines
